Re: [Qucs-help] Beginner's Encounter with Qucs

[Stefan J. <st...@gr...>]

Am Fr, 21.03.2008, 02:26, schrieb J. Patrick Bedell:

> Hello,

Hi!

>    Thanks for your great work on QUCS.  With regard to the sawtooth
> voltage source, it appears that there is a bug that makes the
> rectangular voltage source unusable for triangular waves (on QUCS
> 0.13).  You can look at the attached schematic and the data file, to
> see that setting the rise/fall time much larger than the peak time
> yields an incorrect input waveform.  The precise shape of the waveform
> is highly dependent on the number of transient simulation points,
> which is obviously incorrect.

Please look at the attached schematic.

TH *includes* Tr, and TL includes Tf, that's why you got unexpected
waveforms...

Cheers, Stefan.